Gregory P. Marelich, MD
Critical Care Medicine (Internal Medicine) Physician · Sacramento, CA
Gregory P. Marelich, MD is a critical care medicine (internal medicine) physician with a practice address in Sacramento, California, and NPI 1356429088, issued on Nov 1, 2006. Check the license (California G69061, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gregory P. Marelich
- Credential
- MD
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License number
- G69061 CA
Self-reported in NPPES; status is on the state search - Practice location
- 6600 Bruceville RD, Sacramento, CA 95823
- Phone
- (916) 688-2000
- Enumerated
- Nov 1, 2006
- Record last updated
- Dec 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 00G690610 CA
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 723 in California → Look up another NPI →
Also registered at 6600 Bruceville RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Olana Aberra, MDHospitalist Physician1376621011
- Rola Aboueljoud, DPTPhysical Therapist1275241986
- Fatima Abutin, M.DHospitalist Physician1740558451
- Chelsea Adams, DPTPhysical Therapist1215324645
- Jacob Adams, MDPsychiatry Physician1326126822
Verify Gregory P. Marelich in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G69061Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
49% fewer Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024
356 Medicare Part D claims for 79 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D. Brand-name drugs were 54% of claims.
Most prescribed
- Albuterol Sulfate Hfa59 claims
- Spiriva Respimat45 claims
- Wixela Inhub35 claims
- Breyna34 claims
- Alvesco27 claims
- Stiolto Respimat25 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Gregory P. Marelich among 723 critical care medicine (internal medicine) physician records in California
Gregory P. Marelich, MD is one of 723 critical care medicine (internal medicine) physician records with a practice address in California. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 60% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileNo · 77% of these records are
- Record last updated2021 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in California
There are 723 critical care medicine (internal medicine) physician records in California.
All 723 in California → Every provider in Sacramento → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Sabrina Chen, MDSacramento, CA 958231043382898
- Norman Chow, MDSacramento, CA 958231558449272
- Yuen Kwan, MDSacramento, CA 958231720150568
- Petey Laohaburanakit, M.D.Sacramento, CA 958231295861581
- Loredo Lawsin, MDSacramento, CA 958231760550651
- Frederick Edward Ramos, M.D.Sacramento, CA 958231013167196
- Ngai Yee, MDSacramento, CA 958231013069814
- Gehan Devendra, MDSacramento, CA 958251215015995
Common questions
What is Gregory P. Marelich, MD's NPI number?
Gregory P. Marelich, MD's National Provider Identifier (NPI) is 1356429088, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory P. Marelich, MD located?
The NPPES record lists a practice address at 6600 Bruceville RD, Sacramento, CA, 95823. Phone: (916) 688-2000. Providers update this record themselves, so call before visiting.
How can I verify Gregory P. Marelich, MD's license?
NPPES lists California license number G69061, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory P. Marelich, MD prescribe under Medicare Part D?
In 2024, Gregory P. Marelich, MD had 356 Medicare Part D claims for 79 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.